P1585 Lexus Code - Acceleration Sensor Circuit
Quick Answer
The Engine Control Module (ECM) determines the vehicle inclination based on a signal from the Airbag Sensor Assembly (Yaw Rate and Acceleration Sensor). Common causes include Faulty Airbag Sensor Assembly (Yaw Rate and Acceleration Sensor), Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1585 Lexus indicates Acceleration Sensor Circuit.
- Common causes
- Common causes include Faulty Airbag Sensor Assembly (Yaw Rate and Acceleration Sensor), Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1585 Lexus Description
What are the Possible Causes of the DTC P1585 Lexus?
- Faulty Airbag Sensor Assembly (Yaw Rate and Acceleration Sensor)
- Airbag Sensor Assembly harness is open or shorted
- Airbag Sensor Assembly circuit poor electrical connection
- Faulty Brake Actuator Assembly (Skid Control ECU)
How to Fix the DTC P1585 Lexus?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1585 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1585 Lexus code?
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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about P1585 Lexus Code
1. What does the OBDII code P1585 mean on a Lexus?
P1585 indicates an issue with the acceleration sensor circuit, which monitors the position of the accelerator pedal to ensure proper throttle control.
2. What are the common symptoms of code P1585 in a Lexus?
Common symptoms include reduced engine performance, hesitation during acceleration, the check engine light illuminating, and potential issues with throttle response.
3. What causes the P1585 code to be triggered?
This code can be caused by a faulty acceleration sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).
4. How do I fix the P1585 code on a Lexus?
Repairs may include replacing the acceleration sensor, repairing or replacing damaged wiring or connectors, and, in rare cases, reprogramming or replacing the ECM.
5. Can I drive my Lexus with the P1585 code active?
It is not recommended to drive with this code active, as it can lead to poor throttle response and unsafe driving conditions.
6. How much does it cost to fix the P1585 code on a Lexus?
The repair cost can vary, but replacing the acceleration sensor typically ranges from $150 to $400, including parts and labor.
7. How do I diagnose the P1585 code in a Lexus?
Diagnosing the code involves scanning for additional trouble codes, inspecting the acceleration sensor and its wiring, and testing the sensor's output using a multimeter.
8. Can a dirty throttle body cause the P1585 code in a Lexus?
While a dirty throttle body is not a direct cause, it can contribute to throttle-related issues, so cleaning it may help in conjunction with other repairs.
9. Does the P1585 code always mean the acceleration sensor is bad?
No, the issue could also stem from damaged wiring, loose connectors, or a malfunctioning ECM rather than the sensor itself.
10. How can I prevent the P1585 code from occurring?
Regular maintenance, including inspecting wiring and connectors and ensuring the throttle body and related components are clean, can help prevent this issue.
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